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Restricted TCN :
If enabled, causes the port not to propagate received topology change notifications
and topology changes to other ports. If set it can cause temporary loss of
connectivity after changes in a spanning tree's active topology as a result of
persistently incorrect learned station location information. It is set by a network
administrator to prevent bridges external to a core region of the network, causing
address flushing in that region, possibly because those bridges are not under the
full control of the administrator or the physical link state of the attached LANs
transits frequently.
BPDU Guard :
If enabled, causes the port to disable itself upon receiving valid BPDU's. Contrary to
the similar bridge setting, the port Edge status does not affect this setting. A port
entering error-disabled state due to this setting is subject to the bridge Port Error
Recovery setting as well.
Point to Point
Controls whether the port connects to a point-to-point LAN rather than to a shared
medium. This can be automatically determined, or forced either true or false.
Transition to the forwarding state is faster for point-to-point LANs than for shared
media.
Buttons
Apply – Click to save changes.
Reset- Click to undo any changes made locally and revert to previously saved
values.
2-9.5 MSTI Ports
The section describes it allows the user to inspect the current STP MSTI port
configurations, and possibly change them as well.
An MSTI port is a virtual port, which is instantiated separately for each active CIST
(physical) port for each MSTI instance configured on and applicable to the port. The
MSTI instance must be selected before displaying actual MSTI port configuration
options. It contains MSTI port settings for physical and aggregated ports.
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